diff --git a/test/03_pdu.js b/test/03_pdu.js
index 88b24d8..5272795 100644
--- a/test/03_pdu.js
+++ b/test/03_pdu.js
@@ -4,6 +4,7 @@ var larvitsmpp = require('../larvitsmpp'),
     assert     = require('assert');
 
 describe('PDU convertion', function() {
+	this.slow(2);
 
 	describe('No TLVs', function() {
 		it('should build a PDU buffer for bind_transceiver_resp with error correctly', function(done) {
diff --git a/test/04_session.js b/test/04_session.js
index 6794286..35bd4f1 100644
--- a/test/04_session.js
+++ b/test/04_session.js
@@ -14,6 +14,7 @@ function checkuserpass(username, password, callback) {
 }
 
 describe('Sessions', function() {
+	this.slow(2);
 
 	it('should setup a basic server and client and then directly unbinding again', function(done) {
 		portfinder.getPort(function(err, freePort) {